Finding the Fourth Proportional to 21,064.96, 31,597.59 and 5,270.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,064.96 : 31,597.59 = 5,270.27 : x
2. Step 2: Convert to fraction form
   21,064.96/31,597.59 = 5,270.27/x
3. Step 3: Cross multiply
   21,064.96x = 31,597.59 × 5,270.27
4. Step 4: Simplify right side
   21,064.96x = 166,527,692.42
5. Step 5: Solve for x
   x = 166,527,692.42/21,064.96
6. Step 6: Final answer
   x = 7,905.44